A doctor’s take: Jules Bianchi brain injury | News | Motorsport.com
The mechanism of injury again is a sudden deceleration injury which can cause injury in the brain in two fashions: 1) the breaking of blood vessels causing bleeding (such as an epidural or subdural hemorrhage (like Mark Donohue), or 2) a diffuse axonal injury which is the primary injury reported by the physicians attending to Bianchi.
Explaining diffuse axonal injury
The diffuse axonal injury is much like a large bruise to the brain and can encompass a large portion of the brain. Like all bruises and blunt injuries to the human body, the injured tissues swell, but within the fixed-size boney skull, swelling is extremely dangerous because there is no where for the swelling tissues to expand into with the exception of the opening at the base of the skull where the spinal cord exits.
This type of injury often results in brain death because of the swelling and impingement of the brainstem resulting in a lack of blood flow to the brain. Even if patients with diffuse axonal injuries survive, they often have very serious brain dysfunction for life. If the tragic nature of Bianchi’s injury weren’t enough, once again this accident was avoidable and probably should not have happened. He ran into the back of a crane that should not have been in an area that could be hit by another car, and certainly not under the conditions present. F1 and the FIA will no doubt make some changes in this regards, because we simply must protect racecar drivers better.
You may also find this article of interest: http://www.brainline.org/content/2009/06/tbi-basics_pageall.html
Keep fighting, Jules. Our thoughts and prayers are with you